margsc Advanced Lessons, All Lessons, Soil Chemistry

The Myth of the BCSR and the “Ideal Soil”

Summary: The BCSR, or Basic Cation Saturation Ratio, is the idea that a particular (“balanced”) ratio of three basic cations (Ca, Mg, and K) is best for soil health and plant growth. The ratio defined by the BCSR was developed from ca. 1892-1979 based on historic studies with flawed conclusions and methodologies. The scientists who … Continue reading The Myth of the BCSR and the “Ideal Soil”